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As the plates diverge, upper mantle rock rises and undergoes decompression melting along the rift. Because the upper mantle is comprised of mafic rock, the subsequent melt of this rock produces a mafic magma. Basalt and its coarse-grained intrusive twin, gabbro, are produced when this mafic magma solidifies.
What else can I help you with?
Is subduction common at divergent plate boundaries?
No, subduction is not common at divergent plate boundaries. Divergent plate boundaries are characterized by plates moving away from each other, which creates new oceanic crust. Subduction occurs at convergent plate boundaries where plates collide and one descends beneath the other.
What plate tectonic settings would you find basalts?
Basalts are primarily found at divergent plate boundaries, such as mid-ocean ridges, where tectonic plates are pulling apart and magma rises to fill the gap. They are also common at hotspots, where mantle plumes generate volcanic activity, and at convergent boundaries, particularly in subduction zones, where oceanic crust melts and produces basaltic magma. Additionally, basalts can form in rift zones, where continental plates are splitting apart.
What boundary creates a crust?
The Divergent Boundaries.
What type of plate boundary causes volcanic eruptions?
There are two plate boundaries that cause volcanoes. They are the divergent and convergent plate boundaries.
Which type of boundaries is seafloor created by?
Seafloor is created at divergent plate boundaries called the mid-ocean ridges.
What are three types of plate bounderys?
the three types of plate boundaries are : -convergent plate boundaries -divergent plate boundaries -transformed plate boundaries
What are three types of bounderies?
the three types of plate boundaries are : -convergent plate boundaries -divergent plate boundaries -transformed plate boundaries
What plate boundary creates?
Divergent Plate Boundaries
Is subduction common at divergent plate boundaries?
No, subduction is not common at divergent plate boundaries. Divergent plate boundaries are characterized by plates moving away from each other, which creates new oceanic crust. Subduction occurs at convergent plate boundaries where plates collide and one descends beneath the other.
What type igneous rock is produced at a divergent zone?
Basalt is the type of igneous rock commonly produced at divergent plate boundaries. This rock forms from the solidification of magma that rises to the Earth's surface through the process of seafloor spreading, which occurs at divergent boundaries.
What types of boundaries are there?
There are divergent, convergent, and transform plate boundaries.
Divergent plate boundaries are characterized by what?
Rifts.
What can occur at divergent plate boundaries?
plant boundaries move together
What are the four plate boundaries?
The four types of plate boundaries are divergent boundaries (plates moving apart), convergent boundaries (plates moving together), transform boundaries (plates sliding past each other), and subduction zones (one plate sinking beneath another).
What are plate boundaries that move away form each other?
divergent
What boundary creates a crust?
The Divergent Boundaries.
What are the tree types of plate boundaries?
Plate boundaries are places where two tectonic plates meet. There are three major types of plate boundaries. These are divergent, convergent, and transform plate boundaries.
